EP3191672B1 - Ventilation window and method for leading condensation water of ventilation device of a ventilation window to the exterior - Google Patents

Ventilation window and method for leading condensation water of ventilation device of a ventilation window to the exterior Download PDF

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Publication number
EP3191672B1
EP3191672B1 EP15775492.0A EP15775492A EP3191672B1 EP 3191672 B1 EP3191672 B1 EP 3191672B1 EP 15775492 A EP15775492 A EP 15775492A EP 3191672 B1 EP3191672 B1 EP 3191672B1
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EP
European Patent Office
Prior art keywords
ventilation
ventilation window
heat exchanger
condensation water
ventilation device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP15775492.0A
Other languages
German (de)
French (fr)
Other versions
EP3191672A1 (en
Inventor
Petri HÄNNINEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skaala Ifn Oy
Original Assignee
Skaala Production Oy
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Publication date
Application filed by Skaala Production Oy filed Critical Skaala Production Oy
Publication of EP3191672A1 publication Critical patent/EP3191672A1/en
Application granted granted Critical
Publication of EP3191672B1 publication Critical patent/EP3191672B1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B7/10—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses by special construction of the frame members
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/14—Measures for draining-off condensed water or water leaking-in frame members for draining off condensation water, throats at the bottom of a sash
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
    • E06B2007/023—Air flow induced by fan

Definitions

  • the invention is related to the field of building and ventilation technology, more specifically to ventilation windows.
  • IFN-Holding AG's European patent application publication EP 2 594 725 A2 describes a window with a ventilation unit.
  • the air inlet openings and outlet openings of the window can be in the horizontal or vertical frame or in the horizontal or vertical sash. Air travels between the inlet openings and outlet openings in air ducts made in the frame or in the sash. In this way, condensation water also travels between the inlet openings and outlet openings in air ducts made in the frame or in the sash.
  • a heat exchanger possibly included in the ventilation window has been placed on the outside of the frame inside the body structure of the building, in a recess made on the outside of the vertical frame.
  • UK patent application published under publication number GB 2 138 124 A discloses a ventilator for incorporation in a window frame or structure surrounding a window frame, which includes heat-exchange surfaces providing for exchange of heat between air extracted from a room and air drawn into the room.
  • the heat exchange system includes an additional outlet for condensation which s liable to drain from the hot pass of the heat exchanger.
  • the objective of the invention is to simplify the removal of the condensation water of a ventilation device integrated into a ventilation window.
  • the ventilation window comprises a) a ventilation device equipped with a heat exchanger, installed inside the frame on the vertical side of the ventilation window, b) an outlet duct which is located after the duct of the heat exchanger in the ventilation device and which forms in the ventilation device a drain connection to the exterior.
  • the outlet duct comprises i) a guide, such as a trough, inclined guide surfaces and/or a funnel, arranged to guide condensation water from the mouth of the duct of the heat exchanger, ii) an outlet tube connected to the guide, and iii) an arrangement for keeping water melted.
  • a guide such as a trough, inclined guide surfaces and/or a funnel
  • the outlet duct runs over the entire distance between the heat exchanger and the mouth of the outlet tube inside the ventilation device and furthermore so that condensation water travels all the time downwards by gravitation and with an air flow.
  • the arrangement of the ventilation window for keeping water melted comprises a trace heating cable, it is possible to keep the condensation water that is formed in the ventilation device melted and the ventilation machine operational also during winter time.
  • the trace heating cable When the trace heating cable is self-adjusting, for example so that its resistance is proportional to the temperature, it is possible to keep trace heating on continuously.
  • Such a ventilation window is care-free to use, and by means of it it is possible to minimise breakages of the ventilation device occurring as a result of freezing due to human factors.
  • the heat exchanger is a counter flow heat exchanger, it is possible to achieve a temperature efficiency of as high as 90%.
  • a ventilation window When in the method for leading the condensation water of a ventilation device of a ventilation window to the exterior a ventilation window according to any one of the preceding claims is used for removing condensation water so that the outlet duct runs over the entire distance between the heat exchanger and the mouth of the outlet tube inside the ventilation device and furthermore so that condensation water runs all the time downwards by gravitation and with an air flow, it is possible to reduce the getting of condensation water to the frame and/or sash structure of the ventilation window and/or to the body structure of the building as well as a moisture and/or mould problem possibly resulting from condensation water.
  • FIG 1 and 2 show a perspective view of a ventilation window 1, to which a ventilation device 50 has been installed.
  • the ventilation window 1 comprises a ventilation device 50 equipped with a heat exchanger 62, installed inside a frame 2 on the vertical side of the ventilation window 1, and an outlet duct 77 which is located after the duct 62B of the heat exchanger 62 in the ventilation device 50 (the structure of the ventilation device 50 is described in more detail in FIG 3 ) and which forms in the ventilation device 50 a drain connection to the exterior U.
  • FIG 3 shows a vertical section of the ventilation machine 50 on the plane of the centre line of the outlet tube.
  • the outlet duct 77 comprises a guide 75, most preferably for example a trough, inclined guide surfaces and/or a funnel, arranged to guide condensation water from the mouth of the duct 62B of the heat exchanger 62, an outlet tube 55 installed to the guide 75, and an arrangement 80, 85 for keeping water melted.
  • the heat exchanger 62 is most preferably a counter flow heat exchanger, but it can also be for example a cross flow heat exchanger or a heat exchanger with a rotating cell.
  • Condensation water forms as water vapour contained in air condenses into a liquid on a surface the temperature of which is lower than the dew point temperature of the air passing by, in other words the temperature at which the absolute humidity contained in air reaches 100% relative humidity.
  • condensation water forms in particular in the exhaust air duct 62B of the heat exchanger 62 in a situation where the temperature of fresh air 20 is sufficiently much lower than the temperature of exhaust air 22, and fresh air 22 cools the lamellas of the heat exchanger 62 at least partially to below the dew point temperature.
  • the outlet duct 77 runs most preferably over the entire distance between the heat exchanger 62 and the mouth 55B of the outlet tube 55 inside the ventilation device 50 and furthermore so that condensation water travels all the time downwards assisted by gravitation with the air flow.
  • the mouth 55B of the outlet tube 55 extends to the exterior to a distance L, most preferably to a distance of 10-30 cm, from the external wall R of the building. It is also possible to connect the outlet tube 55 to the rainwater system or sewer system of the building.
  • the arrangement 80, 85 for keeping water melted comprises a trace heating cable 85, which is most preferably self-adjusting, for example so that its resistance is proportional to the temperature.
  • the trace heating cable 85 has been presented in more detail in the perspective view FIG 4 of the electric system 80.
  • FIG 5 shows a view of the mouth 55B of the outlet tube 55 viewed from the top.
  • the outlet tube 55 goes from the ventilation device 1 to the exterior U through the outlet 54 of waste air 23.
  • the outlet tube 55 is fastened to the outlet 54 most preferably by means of a fastening element 72, which can most preferably be a screw, such as a sharp-tipped plate screw ISO 1481 - ST 3.5x13-C or blunt-tipped -F.
  • a ventilation window 1 In the method for leading the condensation water of a ventilation device 50 of a ventilation window 1 to the exterior U, a ventilation window 1 according to any one of the preceding claims is used for removing condensation water so that the outlet duct 77 runs over the entire distance between the heat exchanger 62 and the mouth 55B of the outlet tube 55 inside the ventilation device 50 and furthermore so that condensation water travels the entire distance downwards with an air flow assisted by gravitation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Description

    Field of invention
  • The invention is related to the field of building and ventilation technology, more specifically to ventilation windows.
    • Technical background
  • IFN-Holding AG's European patent application publication EP 2 594 725 A2 describes a window with a ventilation unit. The air inlet openings and outlet openings of the window can be in the horizontal or vertical frame or in the horizontal or vertical sash. Air travels between the inlet openings and outlet openings in air ducts made in the frame or in the sash. In this way, condensation water also travels between the inlet openings and outlet openings in air ducts made in the frame or in the sash. A heat exchanger possibly included in the ventilation window has been placed on the outside of the frame inside the body structure of the building, in a recess made on the outside of the vertical frame.
  • UK patent application published under publication number GB 2 138 124 A discloses a ventilator for incorporation in a window frame or structure surrounding a window frame, which includes heat-exchange surfaces providing for exchange of heat between air extracted from a room and air drawn into the room. The heat exchange system includes an additional outlet for condensation which s liable to drain from the hot pass of the heat exchanger.
    • Objective of invention
  • The objective of the invention is to simplify the removal of the condensation water of a ventilation device integrated into a ventilation window.
  • It is possible to solve the objective in accordance with the invention by means of a ventilation window according to claim 1 and by means of a method according to claim 8.
  • The dependent claims describe the preferred aspects of the ventilation window.
    • Advantages of invention
  • The ventilation window comprises a) a ventilation device equipped with a heat exchanger, installed inside the frame on the vertical side of the ventilation window, b) an outlet duct which is located after the duct of the heat exchanger in the ventilation device and which forms in the ventilation device a drain connection to the exterior.
  • The outlet duct comprises i) a guide, such as a trough, inclined guide surfaces and/or a funnel, arranged to guide condensation water from the mouth of the duct of the heat exchanger, ii) an outlet tube connected to the guide, and iii) an arrangement for keeping water melted.
  • The outlet duct runs over the entire distance between the heat exchanger and the mouth of the outlet tube inside the ventilation device and furthermore so that condensation water travels all the time downwards by gravitation and with an air flow.
  • As compared to the window described in IFN-Holding AG's European patent application publication EP 2 594 725 A2 , the removal of the condensation water of the ventilation device now discussed, integrated into the ventilation window, is simplified, because condensation water travels all the time inside the ventilation machine and the direction of travel of condensation water is always downwards.
  • When the arrangement of the ventilation window for keeping water melted comprises a trace heating cable, it is possible to keep the condensation water that is formed in the ventilation device melted and the ventilation machine operational also during winter time.
  • When the trace heating cable is self-adjusting, for example so that its resistance is proportional to the temperature, it is possible to keep trace heating on continuously. Such a ventilation window is care-free to use, and by means of it it is possible to minimise breakages of the ventilation device occurring as a result of freezing due to human factors.
  • When the mouth of the outlet tube extends to the exterior, it is possible to lead condensation water out of the ventilation window to a distance from the reference surface of the external wall of the building, in which case it is possible to avoid the running of condensation water along the surface of the external wall of the building and moisture and mould problems possibly resulting from this.
  • When the outlet tube has been connected or is connectable to the rainwater system or sewer system of the building, it is possible to lead condensation water in a controlled manner to water removal systems already existing in the building, in which case it is possible to avoid the getting of water to a wrong place such as the structures of the building.
  • When the heat exchanger is a counter flow heat exchanger, it is possible to achieve a temperature efficiency of as high as 90%.
  • When in the method for leading the condensation water of a ventilation device of a ventilation window to the exterior a ventilation window according to any one of the preceding claims is used for removing condensation water so that the outlet duct runs over the entire distance between the heat exchanger and the mouth of the outlet tube inside the ventilation device and furthermore so that condensation water runs all the time downwards by gravitation and with an air flow, it is possible to reduce the getting of condensation water to the frame and/or sash structure of the ventilation window and/or to the body structure of the building as well as a moisture and/or mould problem possibly resulting from condensation water.
    • List of drawings
  • In what follows, the ventilation window is presented in more detail by means of the exemplary embodiments shown in the enclosed drawings FIG 1 - FIG 5. Of the drawings:
    • FIG 1
    shows a perspective view from the interior of a ventilation window to which a ventilation device has been installed;
    FIG 2
    shows a perspective view from the exterior of a ventilation window to which a ventilation device has been installed;
    FIG 3
    shows a vertical section on the plane of the centre line of the outlet tube of the ventilation device;
    FIG 4
    shows a perspective view of the electric system;
    FIG 5
    shows a view of the mouth of the outlet tube viewed from the top;
  • The same reference numbers refer to the same technical characteristics in all drawings.
    • Detailed description of the invention
  • FIG 1 and 2 show a perspective view of a ventilation window 1, to which a ventilation device 50 has been installed.
  • The ventilation window 1 comprises a ventilation device 50 equipped with a heat exchanger 62, installed inside a frame 2 on the vertical side of the ventilation window 1, and an outlet duct 77 which is located after the duct 62B of the heat exchanger 62 in the ventilation device 50 (the structure of the ventilation device 50 is described in more detail in FIG 3) and which forms in the ventilation device 50 a drain connection to the exterior U.
  • FIG 3 shows a vertical section of the ventilation machine 50 on the plane of the centre line of the outlet tube. The outlet duct 77 comprises a guide 75, most preferably for example a trough, inclined guide surfaces and/or a funnel, arranged to guide condensation water from the mouth of the duct 62B of the heat exchanger 62, an outlet tube 55 installed to the guide 75, and an arrangement 80, 85 for keeping water melted. The heat exchanger 62 is most preferably a counter flow heat exchanger, but it can also be for example a cross flow heat exchanger or a heat exchanger with a rotating cell.
  • Condensation water forms as water vapour contained in air condenses into a liquid on a surface the temperature of which is lower than the dew point temperature of the air passing by, in other words the temperature at which the absolute humidity contained in air reaches 100% relative humidity. In the ventilation device 50, condensation water forms in particular in the exhaust air duct 62B of the heat exchanger 62 in a situation where the temperature of fresh air 20 is sufficiently much lower than the temperature of exhaust air 22, and fresh air 22 cools the lamellas of the heat exchanger 62 at least partially to below the dew point temperature.
  • The outlet duct 77 runs most preferably over the entire distance between the heat exchanger 62 and the mouth 55B of the outlet tube 55 inside the ventilation device 50 and furthermore so that condensation water travels all the time downwards assisted by gravitation with the air flow. The mouth 55B of the outlet tube 55 extends to the exterior to a distance L, most preferably to a distance of 10-30 cm, from the external wall R of the building. It is also possible to connect the outlet tube 55 to the rainwater system or sewer system of the building.
  • The arrangement 80, 85 for keeping water melted comprises a trace heating cable 85, which is most preferably self-adjusting, for example so that its resistance is proportional to the temperature. The trace heating cable 85 has been presented in more detail in the perspective view FIG 4 of the electric system 80.
  • FIG 5 shows a view of the mouth 55B of the outlet tube 55 viewed from the top. The outlet tube 55 goes from the ventilation device 1 to the exterior U through the outlet 54 of waste air 23. The outlet tube 55 is fastened to the outlet 54 most preferably by means of a fastening element 72, which can most preferably be a screw, such as a sharp-tipped plate screw ISO 1481 - ST 3.5x13-C or blunt-tipped -F.
  • In the method for leading the condensation water of a ventilation device 50 of a ventilation window 1 to the exterior U, a ventilation window 1 according to any one of the preceding claims is used for removing condensation water so that the outlet duct 77 runs over the entire distance between the heat exchanger 62 and the mouth 55B of the outlet tube 55 inside the ventilation device 50 and furthermore so that condensation water travels the entire distance downwards with an air flow assisted by gravitation.
    • List of reference numbers used:
    • R
    reference surface of external wall of building
    L
    distance
    U
    exterior
    S
    interior
    1
    ventilation window
    2
    frame
    5
    glass element
    7
    light opening area
    20
    fresh air
    21
    inlet air
    22
    exhaust air
    23
    waste air
    50
    ventilation device
    51
    inlet
    52
    outlet
    53
    inlet
    54
    outlet
    55
    outlet tube
    55A
    mouth
    55B
    mouth
    56
    filter
    62
    heat exchanger
    62B
    exhaust air duct of heat exchanger
    63
    exhaust air blower
    66
    suction duct
    68
    sound insulation casing
    72
    fastening element
    73
    installation duct
    74
    guideway
    75
    guide
    76
    cover plate
    77
    outlet duct
    80
    electric system
    81
    user interface/panel
    82
    circuit board
    83
    power supply and data cable
    84
    power cable of blower
    85
    trace heating cable
    86
    CO2 sensor cable
    87
    temperature sensor cable

Claims (8)

  1. A ventilation window (1) comprising:
    - a ventilation device (50) which has been installed inside a frame (2) on the vertical side of the ventilation window (1) and which is equipped with a heat exchanger (62);
    - an outlet duct (77) which is located after the duct (62B) of the heat exchanger (62) in the ventilation device (50) and which forms in the ventilation device (50) a drain connection to the exterior (U),
    and characterized in that:
    the outlet duct (77) comprises
    i) a guide (75) such as a trough, inclined guide surfaces and/or a funnel, arranged to guide condensation water from the mouth of the duct (62B) of the heat exchanger (62);
    ii) an outlet tube (55) installed to the guide (75); and
    iii) an arrangement (80, 85) for keeping water melted; and where in the ventilation device (50) the outlet duct (77) runs over the entire distance between the heat exchanger (62) and the mouth (55B) of the outlet tube (55) inside the ventilation device (50) and furthermore so that condensation water travels all the time downwards by gravitation and with an air flow.
  2. A ventilation window (1) according to claim 1, wherein the arrangement (80, 85) for keeping water melted comprises a trace heating cable (85).
  3. A ventilation window (1) according to claim 2, wherein the trace heating cable (85) is self-adjusting, most preferably so that the resistance of the trace heating cable (85) is proportional to the temperature.
  4. A ventilation window (1) according to any one of the preceding claims, wherein the mouth (55B) of the outlet tube (55) extends to the exterior to a distance (L) from the reference surface (R) of the external wall of the building.
  5. A ventilation window (1) according to any one of the claims 2-4, wherein the outlet tube (55) has been connected or is connectable to the rainwater system or sewer system of the building.
  6. A ventilation window (1) according to any one of the preceding claims, wherein the heat exchanger (62) is a counter flow heat exchanger.
  7. A ventilation window (1) according to any one of the claims 2-6, wherein there is an inner sash and/or an outer sash and it is possible to open they/it to the interior (S) and/or to the exterior (U) by tilting or tipping.
  8. A method for leading the condensation water of a ventilation device (50) of a ventilation window to the exterior (U), in which method a ventilation window (1) according to any one of the preceding claims is used for removing condensation water so that the outlet duct (77) runs over the entire distance between the heat exchanger (62) and the mouth (55B) of the outlet tube (55) inside the ventilation device (50) and furthermore so that condensation water travels the entire distance downwards with an air flow assisted by gravitation.
EP15775492.0A 2014-09-05 2015-08-24 Ventilation window and method for leading condensation water of ventilation device of a ventilation window to the exterior Active EP3191672B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20145780A FI126024B (en) 2014-09-05 2014-09-05 Ventilation window and method for conducting condensate from a ventilation window to an outdoor space
PCT/IB2015/056400 WO2016034980A1 (en) 2014-09-05 2015-08-24 Ventilation window and method for leading condensation water of ventilation device of a ventilation window to the exterior

Publications (2)

Publication Number Publication Date
EP3191672A1 EP3191672A1 (en) 2017-07-19
EP3191672B1 true EP3191672B1 (en) 2018-10-10

Family

ID=54256784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15775492.0A Active EP3191672B1 (en) 2014-09-05 2015-08-24 Ventilation window and method for leading condensation water of ventilation device of a ventilation window to the exterior

Country Status (3)

Country Link
EP (1) EP3191672B1 (en)
FI (1) FI126024B (en)
WO (1) WO2016034980A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3214253B1 (en) 2016-03-03 2019-07-10 Skaala IFN Oy Ventilation device for a window
FI127593B (en) 2016-03-03 2018-09-28 Skaala Production Oy Ventilation equipment and ventilation window
EP3214381A1 (en) 2016-03-03 2017-09-06 Skaala Production Oy Ventilation device and ventilation method
CN113405195A (en) * 2021-06-16 2021-09-17 浙江理工大学 Total heat exchanger with double-side membrane structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138124B (en) * 1983-03-16 1987-09-23 Norcros Investments Ltd Ventilator
WO2011110988A1 (en) * 2010-03-06 2011-09-15 Helmut Koester Air conditioning unit for non ventilated double skin façade elements
AT512198B1 (en) 2011-11-18 2015-11-15 Ifn Holding Ag WINDOW

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3191672A1 (en) 2017-07-19
FI126024B (en) 2016-05-31
WO2016034980A1 (en) 2016-03-10
FI20145780A (en) 2016-04-27

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